﻿// Copyright 2004-2011 Castle Project - http://www.castleproject.org/
// 
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// 
//     http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

namespace Castle.Core.Internal
{
	using System;
	using System.Collections;
	using System.Diagnostics;

	[DebuggerStepThrough]
	[DebuggerNonUserCode]
	public static class Must
	{
		public static T NotBeEmpty<T>(T arg, string name) where T : class, IEnumerable
		{
			if (NotBeNull(arg, name).GetEnumerator().MoveNext() == false)
			{
				throw new ArgumentException(name);
			}
			return arg;
		}

		public static T NotBeNull<T>(T arg, string name) where T : class
		{
			if (arg == null)
			{
				throw new ArgumentNullException(name);
			}
			return arg;
		}
	}
}